Control unit and method of actuating safety equipment and sensor for outputting emergency signal

FIELD: physics; control.

SUBSTANCE: invention relates to control for actuating safety equipment. The invention discloses a control unit and a method of actuating safety equipment, as well as a sensor for outputting an emergency signal. The control unit for actuating safety equipment includes at least one interface which outputs a digital information signal, which includes multiple simultaneously turned on current sources for acting on the front of the digital information signal.

EFFECT: providing electromagnetic compatibility of control signals.

10 cl, 6 dwg

 

The technical field to which the invention relates.

The present invention relates to a control unit and method for actuation of security tools and to the sensor to signal an emergency situation, according to the generic concepts of the respective independent claims.

The level of technology

From the publication DE 10250920 A1 it is known, that the transmission of data security through pulse width modulation of the generated pulses is so narrow that it can create problems related to electromagnetic compatibility.

Disclosure of inventions

Proposed in the invention the control unit, the method and the sensor described in the respective independent claims are compared to the known solution the advantage that the impact on the fronts of the transmitted (i.e. to transfer the digital signal with a few within the interface in parallel and simultaneously include current sources effectively helps to ensure electromagnetic compatibility (EMC). The impact on the fronts of the signals enables the formation of these fronts in the sense of optimal EMC. In particular, the implementation of the invention creates the possibility of a more simple and cost-effective implementation with testwuide standards for EMC. First of all, the invention allows to fully exploit the potential of modern-specific integrated circuit (ASIC)that implement, for example, the system module in the control unit inflatable airbags in respect of digital opportunities. This creates the possibility of the so-called formation of fronts in the EMC by the appropriate governing growth and decay of current. Provided with a lower tolerance, it becomes possible standards, and generally decrease costs and achieve greater flexibility.

Thus, the invention can be applied, in particular, in such a system of specialized integrated circuits, and in this case does not require additional external components. Under such a system specialized integrated circuits it is necessary to understand modules that include more than one function pure data as a transceiver, i.e. they contain a transmitter / receiver (transceiver) as one of several circuit blocks; for example, system application-specific integrated circuits in safety systems of vehicles contain transceivers LIN as circuit blocks used to attach peripheral sensors or control units sensors via point-to-point (direct) connection is whether bus systems.

The invention can be applied equally in the system of specialized integrated circuits external sensors safety systems of the vehicle, which includes a circuit block of the current interface to connect to point-to-point connections, casilinum or buses.

The invention makes it possible to better formation of fronts. The formation of fronts can better coordinate with specified interfaces and/or the load bus. Much better than, for example, in similar schemes, removed process and temperature variation of the quality of the formation of fronts.

Thanks proposed in the invention to the formation of fronts can achieve a higher data rate without additional shielding measures implemented, for example, suppression of excessive high frequency components in the fronts of the transmitted signals with improved symmetry of the rising and falling edges of the signal.

The impact of the current sources on the fronts of the signals occurs in a given time interval, depending on the target of rise or fall. On both logic level power sources, and if affected, as a permanent component.

Under the control block in the context of the invention should be understood electrical device that handles signalization and depending on them generates control signals for security. Security features are airbags, seat belt pretensioners, active head restraints, protection of pedestrians, and active security features, such as brakes and/or control system dynamics. "Enforcement" means in the context of the invention the activation of such security.

At least one interface preferably is part of a system of specialized integrated circuits. However, at least one interface can be built as a separate integrated circuit or additionally by means of discrete components. It is also possible to implement the interface on the software level (programmatically).

The digital information signal can represent one or more individual signals. Digital modulation is preferably amplitude modulation, although the implementation of the invention may use other types of modulation, such as pulse-width modulation, etc.

In the manufacture of power sources can be used in any possible circuit designs. Software can be implemented and at least one part of such a current source. The current sources can be made, in particular, as a classical current drains (artificial load on the CMOS). In particular, for power sources can be used a reference current, which can also be increased by a multiple of the source normalized currents.

The fronts of the signal is an abrupt change in signal that transitions between values representing a logical zero and a logical unit.

Proposed in the invention the sensor is a sensor that outputs a signal relating to an emergency or road accident, such as collision signals, signals from the environment or signals carrying the information about the presence in the vehicle of the driver/passengers, or other signals from sensors, which may be useful from the point of view correct actuation security.

Given in the dependent claims activities and improvements to characterize the preferred options are disclosed in the independent items of the control unit to actuate the security of the corresponding method and a corresponding sensor.

In one embodiment, multiple power sources may be provided by the management tool, which for the impact on the fronts of the signal switches by means of digital signals, the current sources at given points in time, and the first clock cha is Thoth switching current sources exceeds the clock rate of the data transmission. In this preferred embodiment of the invention, the current sources are switched depending on the control signal, usually directly codeword decoder, to achieve the proper total current. This total current is superimposed on the digital signal, and the switching of the current sources is performed with a clock frequency higher than the clock frequency of data transmission that allows small time interval exactly to change and shape the front of the information signal.

The specified management tool represents, for example, a decoder or other part of the circuit, capable of handling signals and depending on them to give out to control other signals.

Also a suitable option, in which the interface includes a detection circuit designed to detect the issuance of a digital signal, a counter, starting depending on the detection signal generated by the detection circuit, and a decoder that controls the switching of the current sources depending on the state of the counter. In this embodiment, the interface learns through discovery schema of the scheduled data transmission. If this is true, then starts a counter state which activates the decoder, depending on the state of the counter controls switching the m current sources, for example, by issuing the corresponding code words, which determine that the current sources in a given time should switch, and some are not. The detection scheme is, for example, a portion of the integrated circuit, configured to detect fronts. The counter is, for example, six-digit and starts depending on the detection signal, and the decoder converts the state of the counter in the code word so that the current sources are switched depending on the code word decoder. A possible variant, in which the code word decoder are hard (hardware) sewn or determined, for example via another interface, the microcontroller of the control unit. There may be other ways to impact that, in particular, reflect the current load of the tire. However, because the load bus is usually known a priori, it is possible to provide such a tough firmware. Can also be a variant signals selected from various hardwired combinations of code words of the decoder, and then the signal is optimally match the existing load bus.

The interface may include four current source, because the four current sources turned out to be sufficient for implementing the control of the fronts of the information signals is impressive. With a larger number of current sources can provide a more accurate formation of fronts, and with fewer current sources forming fronts will be less accurate.

Preferred has shown a variant in which the clock frequency used to switch the current sources, a hundred times greater than the clock rate of data transmission. This allows the formation of fronts with very high accuracy, because when using such a high clock frequency can be individually set, by switching the current sources, the set of points of the front.

Can also be provided by the scheme impact to impact on the current values of the respective current sources. This pattern of impacts may also be part of a system of specialized integrated circuits, in another embodiment, it may be at least partially implemented in software. It is possible also external implementation scheme of the impact, i.e. the implementation outside of the system of specialized integrated circuits. Impact on current value can be provided individually for separate power sources, or in relation to the Central values, which entails changing the values of all current sources.

In addition, the interface, as noted above, can be located in igralni scheme, implements other functions of the control unit. This allows the so-called system-specialized integrated circuit. Mentioned the other functions of the control unit are, for example, the function of the ignition circuit with electrically controllable power switches, foccia controller security, which is in parallel with the microcontroller checks the data from the sensors to determine the presence or absence of the necessary actuation security, and function power supply control unit, and the management and control of energy supply/energy consumption. In addition, the control unit may be several such integrated circuits.

Brief description of drawings

Below are embodiments of the invention illustrated in the drawings, showing:

figure 1 - proposed in the invention the control unit with the connected components

figure 2 - block diagram used in accordance with the invention, interface,

figure 3 - selection scheme

figure 4 is a first embodiment of a current source used in accordance with the invention,

figure 5 is a second embodiment of a current source used in accordance with the invention, and

figure 6 - block diagram of the proposed in the invention method.

p> The implementation of the invention

Figure 1 shows a control unit SG proposed type with connected components in the vehicle FZ. For clarity, the drawing shows only the components necessary for understanding the invention. Other components that are necessary for the operation of the control unit, but do not contribute to the understanding of the invention, to simplify the drawing is not shown.

Sensor US emergency connected to the control unit SG, it is a system of specialized integrated circuit SA. This system specialized integrated circuit SA is the front-end part of IF, which is hereinafter referred to as the interface and which can be connected to sensors of an emergency. Such sensors include not only the crash sensors such as acceleration sensors, pressure sensors, air and structure-borne noise sensors, but the sensors in the environment, such as radar, ultrasonic and/or lidar sensors, and occupancy sensors, and, if necessary, and the weight of the driver and passengers or posture in which they reside. There is also an option, which can be provided by other sensors that fall under the term "sensor US emergency. In a simplified view of such sensors emergencies are beyond the control unit SG. Together with those who, such sensors emergency can also be located, at least partially, in the control unit SG. System specialized integrated circuit SA, has, as indicated above, additional features, which, however, in this case play a minor role and therefore the description is generally not considered. The system module SA associated with µC microcontroller to send µC microcontroller signals, such as signals from sensors US emergency. The µC microcontroller processes the sensor signals in such a way as to ensure that the decision upon actuation security PS. The actuation means of safety, formed on the basis of this decision, transmitted to the schema of the ignition FLIC. This scheme ignition FLIC can be part of a system of specialized integrated circuits. Diagram of the ignition FLIC has electrically controllable power switches, the input current to the igniters inflatable air bags or other actuating devices and thus providing actuation means security. Data transfer, for example, in the direction of the sensors from US emergency or to these sensors may be accompanied by the emission of electromagnetic fields, especially in transitions between levels n the voltage in the form of steep fronts. Therefore, in accordance with the invention, these transitions form thus, to reduce this radiation to a minimum. For the formation of these transitions are current sources that are included in the interface IF and aktiruyte with a very high frequency, compared with a clock speed of data transmission (clock frequency of the information signal), and thus provide the exact formation of these fronts: both falling and rising edge.

Figure 2 shows an example used in accordance with the invention, interface, and within the system of specialized integrated circuits SA shows only the components relevant to the invention. In the system of specialized integrated circuit provided by the scheme FE detection of fronts, which recognizes that the source, such as external to the specialized integrated circuit microcontroller or circuit block of a specialized integrated circuit, which can be compared with the microcontroller wishes to convey to other components of the data, namely data TXD. The transfer of this information in the form of a digital signal. If the scheme of the FE detection fronts detect signal TXD falling front, it activates the counter Z, in this case six-digit counter. This counter is controlled by a clock with cha what Thoth ECLK, which in this case is 2 MHz and a hundredfold greater than used in this case, the clock rate of the data transmission (clock frequency of the information signal). Alternatively, the clock frequency of the counter can be generated, or generated at least in part, by the internal generator O specialized integrated circuits.

The scheme of the FE detection fronts tells the decoder DEC about detected whether falling or rising edge. Also, the counter Z decoder transmits its state. In addition, the decoder DEC is served transmitted information signal TXD. The decoder DEC depending on achieved status counter generates new predefined code word: for example, for 64 status values six-digit (N-bit counter when the state 0-1 counter may be issued a four-digit (≤N-bit code word DW1 decoder, in the 2-4 meter is a four - digit code word decoder etc. These code word decoder are issued four (≤N) of the current source 11, 12, 13 and 14. In other words, the decoder DEC generates a current vectors, determining which of the current sources 11, 12, 13 or 14 are switched, and which are not.

Figure 2 shows the interface transceiver that performs provided by the invention forming the fronts of the signals. The transmitted signal TD is generated by the µC microcontroller or other circuit blocks of the system of specialized integrated circuits SA. The problem is presented in figure 2 circuit part is to be subjected to an existing digital information pre-processed in a series of consecutive information bits so that this information can be sent over the transmission line to the remote sensor without a strong interfering radiation. Under the remote sensor should be understood, for example, the peripheral sensor, i.e. a sensor that is outside of the control unit.

For this purpose, in accordance with the invention, the digital signal is amplified specifies the cascade current sources 11 to 14 so that, in spite of the load bus, the data stream can be correctly transmitted to the receiver, the remote for a few meters. This would only signal TXD and managed them with a source of the predetermined current, such as current flow. For an interface, LIN, for example, their values would be equal to 50 mA. However, when necessary to filter high frequency components of the capacitive loading of the bus that leads to the formation of rapidly falling edge of the voltage determined by the current flow (50 mA) and the total capacity of the bus and slower rising edge of the voltage, which is determined pull-up (load) resistor, at least one resistor, and the total capacity of the tire. This is due to strong h is the symmetry of the falling and rising edges of the signal, depending on the voltage level on the bus. General optimization falling and rising edges of the signal on the bus in this example can be achieved by providing sufficient temporal resolution in the time interval of a descending and ascending fronts with TXD, using auxiliary clock frequency in the form of system clock frequency or a multiple or use internal to a specialized integrated circuit of the generator.

In the case of interface-LIN with a bit time of 50 μs and this purpose can be used, for example, the clock frequency of 2 MHz, and in the case of tire sensors, where the bit time is, for example, 8 MS, can be used, for example, a clock frequency of 12.5 MHz. The basis of this view is the assumption that good results of the formation of fronts can be obtained if the resolution used to change the shape of the front, is provided in a hundred times faster signal.

Input TXD is recognized by the scheme FE detection of fronts. If the front signal falling, runs N-bit, in this case, six-digit, the counter Z, which it is with appropriate frequency, as described above. The decoder DEC is connected to N, in this case six, the primary outputs of the counter Z. Accordingly to predefined States of the counter decoder each time the condition is enableval control signals, sent to the current sources. The current sources are, as indicated above, current drains or, if necessary, the so-called high-voltage sources, presents electrically controlled transistors, preferably n - or p-channel MOS field-effect transistors in the system of specialized integrated circuits SA. In the case of a falling edge of the current value, as the state changes counter from 0 to 38, for example with a time interval of 0.5 MS can incrementally, i.e. every 0.5 μs and so on until 19 ISS, to grow from 3.5 mA to 52.5 mA. Thus, having four current source, the first 11 of which has a value of 3.5 mA, the second 12 - value of 7 mA, the third 13 - value of 14 mA and the fourth 14 - is 28 mA, it is possible to form the front, in this case falling front. With this changing in the time interval of the front of the diagnostic current IDIA is formed in the front (voltage). Before reaching a new code word decoder to control the current sources remains the same output vector. To avoid lag between specialized integrated circuit and transmitting data TXD, coming at the time of generation of the frequency of ECLK, alternatively, to produce the first output vector of the current sources to the status of counter 0 can immediately when TXD=0 after a falling edge. When using N-category of the CSOs counter for falling edge voltage you can use a maximum of M≤2 Ncode words of the decoder. In the above example, when using a six-digit counter and resolution of 0.5 MS for a given falling edge of the voltage used 14 code word decoder 14 and thereby changes diagnostic of the current. By the proper choice of code words of the decoder can be arbitrarily mixed equidistant changes current netvigilance current changes. The number of current sources is usually greater than or equal to one.

If after passing the falling edge of TXD signal counter has reached the state corresponding to the code word decoder "stop", the decoder DEC initiates the stopping of the counter Z. Accordingly, the code word decoder on the current sources 11 to 14 are now given a vector of current exposure, for example 52,5 mA, as indicated above. This vector current exposure is maintained as long until you come rising edge bit digital data signal TXD.

If the scheme of the FE detection of fronts has detected the rising edge occurs, the counter Z by reset is initiated and starts the counter, resulting in a decoder DEC for the current sources is given a new vector current. Further the shape of the rising edge of the output voltage DIA is the impact of prescribed magnitude of the predetermined current vectors as in the case of falling edge (usually preset definition of current vectors for the formation of the growing fronts differs from the pre-specified definition of current vectors for the formation of a falling edge).

The definition of the relevant vectors of the current and temporary positioning is performed on the basis of physical load bus, for example a pull-up (load) resistor or pull-up resistors bus or the total capacity of the bus. If the rising edge counter Z has reached the state corresponding to the code word decoder "stop", as a rule, given a vector current (aging), which leads to the fact that diagnostic current becomes zero. Code word decoder to set a new vector current can be hardwired through a mask for the manufacture of specialized integrated circuits fixed or may be selected by the so-called fit using Zener diodes, or may be flexibly programmed microcontroller µC using the appropriate number of recorded registers via a serial peripheral interface (SPI interface) specialized integrated circuits. This feature is symbolically represented by a programming block P1, and an SPI interface SPI1 coming from the µC microcontroller. To the conclusion DIA summarized, for example, lines, or PR is water, LA and LB tires, and an information signal is output through the contacts CS. For tires, the action of which is based on the use of voltage levels, using a pull-up (load) resistor R1. In this case, additionally or alternatively, the formation of fronts can be done by setting the current sources 11-14 module programming P2, and this configuration can also be fixed or can be programmed through the SPI interface SPI2. As noted above, this can also occur through effects on the Central factor.

Figure 3 shows a receiver for a signal received on lineandand b. When using the LIN bus uses only one wire, for example, the lineand. The condition for this is that all subscriber units bus must be connected to the vehicle weight. This connection to the mass of the provisionally designated on the drawing position 300.

The drawing shows foster contacts CE, as well as a pull-up (load) resistor R2 connected to the voltage UB on the bus. However, in the case of receivers using the current levels, without this resistor can be dispensed. Typically, to detect signals transmitted on lines LA, LB, the received voltage is compared with a reference voltage UREF. Alternatively, you can provide the receiver PE, using the current levels and receiving the transmitted information on the changes of the current on the bus line. For this current tyres supplied from a power supply UB bus is routed through the shunt R_sh. Simultaneously to the input of the comparator, for example, from the positive (+) output supply voltage is supplied tires Ukomp(+)=UB. The voltage at the other end of the shunt is with respect to "ground" (GND) scheme: UDIA=UB-IDIA*R_sh. On the second comparator input, for example by a minus (-) output high level (pull-up current source with current I=(1/1000)*IDIA/2 through a resistor 1000*R_sh supported voltage Ukomp(-)=UB+1000R_sh*(1/1000)*IDIA/2=UDIA*(IDIA/2)*R_sh.

In the absence of transmission on the bus a bit, i.e. when the amplitude of the current is equal to zero: IDIA=0, the voltage UDIA=UB=UKomp(+). UKomp(-)=UB+(IDIA/2)*R_sh.→RxD is level "0"because UKomp(-)>UKomp(+). When communicating in the form of bits of information with a current amplitude of IDIA voltage UDIA-UB-IDIA*R_sh, UKomp(+)-UB, UKomp(-)-UB-IDIA/2*Rsh. As a result, the comparator goes to the issue of level "1"because UKomp(-)<UKomp(+). Thus, the stability of the receiver is determined by pairing with a specific hard-coded (constant) threshold, an educated half the expected amplitude of a current bit of information. For perception threshold current (1/1000)*IDIA/2 required minor load bus to ground. To set threshold can be used and other current levels but they need to pick up the shunt and load bus.

The comparator K1 has a power input that receives a voltage of 3.3 V, i.e. the digital supply voltage. The same applies to the comparator K2. As a variant, weight 300 can not be used if the Comparators are working towards line b, for example, when using included further optoelectronic communication devices.

Figure 4 shows the first embodiment of the current sources used in accordance with the invention, for example in the apparatus for forming fronts, shown in figure 2. For this purpose the current regulator, made in the form of stabilized current source. The reference voltage UREF is generated in the system of specialized integrated circuit SA in the form of so-called majorosova zone stresses. In addition, a shunt resistor R_SH1 to just pick resistance having a small temperature characteristic. This shunt resistor R_SH connected to the integrated circuit from the outside, since specific integrated circuits such resistors is impossible to produce conventional mixing processes with sufficient accuracy. Operational amplifier K4 controls the transistor T1 is made in the form of n-channel MOS transistor so that the voltage at R_SH1 equal to a reference voltage, and, accordingly, sets the current IDA=UREF/R_SH1. If the current reference voltage is formed by the output vector (codeword decoder), for example UREF=S0*UREF0+S1*UREF1+S2*UREF2+S3*UREF3, where (S0, S1, S2, S3)=binary code word decoder (vector), a UREF0, UREF1, UREF2, UREF3 components majorosova zone stresses Ubgap generated inside a specialized integrated circuit, each new code word decoder may be a new diagnostic current IDIA. Used vector may reach more than four bits.

Another variant implementation of the invention depicted in figure 5, where again on the system of specialized integrated circuit SA is made stable current source. This option is primarily requires specialized integrated circuits are not shown in the drawing, source normalized currents specified reference voltage UREF, which again is based on majorosova zone stresses, and external resistor just pick resistance. Thus, it is possible to generate the base currents of the upper level IREF0, IREF1, IREF2...IREFL, which can stand out from the source of the normalized currents using well-known techniques of the current mirrors. Using the steering vector S0, S1, S2...SL it is possible to form the total current I_REF=S0*I_REF0+S1*I_REF1+... This is symbolized by the source current I_REF.

The two agreed resistors with what soprotivlenie R_SH and multiple it by the resistance K*R_SH is possible to generate accurate and stable temperature current IDIA=K*I_REF, because resistance although not coincide exactly, but their relationship is characterized by a constant factor K. This factor is a geometric factor size. In specialized integrated circuits, the ratio can be precisely set, because it is associated with very high precision masks used in manufacturing processes of semiconductor devices. Temperature characteristic is also good, since the resistors of the same type do not differ in the properties of the material. This is particularly advantageous when it is used in specialized integrated circuits with a Central signal forming the reference current to generate a current transmission IDIA, because it does not require additional external components or pins. When this operational amplifier K5 controls the transistor T5, respectively. Here you need only one large output transistor T5, as by means of the control vector decoder selects the weights of the sum of the reference currents for summarises source I_REF. This leads to a rational solution, because there are only small reference current and output current diagnostic driver is formed by the relation K shunt resistance.

Another variant implementation, the image is placed involves the use of a classical current sources in the form of wastewater, moreover, the vector current decoder specifies the current flow, as provided by the scheme in figure 2. This classic capability avoids the disadvantages of the first option, shown in figure 4, namely application-specific LIN external shunt pin contact, however, may not provide much economical use of the surface of the driver LIN. Also, based on the application of the Central source normalized currents using a current mirror with the corresponding reflection coefficients to obtain from the source of the normalized currents of any current source IREF1. Because these sources are used to generate a current IDIA directly, and the current is reduced by a factor of K, as provided in the second embodiment is not applied, the required surface area is larger than in the above-mentioned second embodiment, with the same precision.

Figure 6 presents the block diagram of the proposed in the invention method. In step 600 locates the upcoming signal, namely the signal TXD. In step 601 is passed information about the form of the passing of the front, i.e. front rising or falling. Then, in step 602, the detection of the front causes the start counter, and at step 603, the decoder depending on the state of the counter sets the current vectors for the corresponding pereklyuchayetsya current. Thus, the next step 604 is performed corresponding to the formation of the front. 5

1. The control unit (SG) for actuation security (PS)containing at least one interface (IF)issuing digital information signal, characterized in that the at least one interface (IF) includes several parallel and simultaneously include current sources (I1-I4) for effects on the fronts of the digital information signal.

2. The control unit according to claim 1, characterized in that for multiple current sources (I1-I4) provided by the management tool, which for the impact on the fronts of the signal switches by means of digital signals, the current sources at given points in time, and the first clock frequency switching current sources exceeds the clock rate of the data transfer.

3. The control unit according to claim 2, characterized in that the interface (IF) includes a circuit (FE) detection designed to detect the issuance of the digital signal, the counter (Z), starting depending on the detection signal generated by the scheme (FE) detection, and a decoder (DEC)that controls the switching of the current sources depending on the state of the counter.

4. The control unit according to claim 1, characterized in that the interface (IF) includes four current source (I1-I4).

5. The control unit pop, characterized in that the clock frequency of at least one hundred times greater than the clock rate of the data transfer.

6. The control unit according to claim 1, wherein the circuit is provided exposure to impact on the current values of the respective current sources (I1-I4).

7. The control unit according to claim 1, characterized in that at least one interface (IF) is located on the integrated circuit (SA)that implements other functions of the control unit.

8. Sensor to signal emergencies to digital information signal, wherein the sensor interface is made according to one PP. 1-7.

9. The method of actuation security (PS), which includes actuation means of security based on digital information signal, characterized in that on the fronts of the digital information signal is affected by several parallel and simultaneously include current sources.

10. The method according to claim 9, characterized in that the impact on the fronts of the information signal current sources (I1-I4) switch via digital signals at specific points in time, and the first clock frequency switching current sources exceeds the clock rate of the data transmission.



 

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7 cl, 39 dwg, 4 tbl

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to network communication technology and specifically to data transmission based on slide detection. The technical result is avoiding the downloading of data of no interest to a user, i.e. corresponding to a message cell that enters into and then slides out of the screen quickly, which considerably reduces traffic of a mobile device user. The method includes, when it is detected that a time line scrolls on the screen of a user device, recording, by a message client application, a message cell displayed on the screen (step 101), and determining, by the message client application, whether the message cell is still displayed on the screen after a predefined time interval (step 102); if the message cell is still displayed, downloading, by the message client application, data corresponding to the message cell from a message server (step 103).

EFFECT: also disclosed is an apparatus for data transmission based on slide detection, which includes a detecting module, a recording module, a determining module and a downloading module.

18 cl, 6 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to communication systems and specifically to systems of digital radio communication means, and can be sued to exchange data and audio and video information between aerial, ground, water-borne and space objects. The modular on-board system of digital radio communication means comprises 2N crates consisting of two control switching modules and two computing modules, 4N-channel communication modules comprising digital-to-analogue and analogue-to-digital converters and a power amplifier, made in a single unit spatially spaced apart with the crate.

EFFECT: improved energy-efficiency and reliability of digital radio communication.

1 dwg

FIELD: radio engineering, communication.

SUBSTANCE: method of transmitting control channel information in a wireless network infrastructure entity comprises steps of: transmitting a super-frame having a single configuration information control channel, wherein the super-frame includes time-frequency resource region containing an allocation control channel and multiple pilot elements, at least some of which are associated with the allocation control channel, and indicating, in a configuration information control channel, a characteristic of the multiple pilot elements associated with the allocation control channel.

EFFECT: enabling a mobile station to efficiently receive and decode data transmitted in a resource block.

24 cl, 14 dwg

FIELD: data transfer networks, in particular Ethernet-based.

SUBSTANCE: device is made in form of multiple individually programmed single-port communication modules for access to common distributor bus 10, while each single-port communication module has: programmed micro-controller 1, made as access control block for transmitting environment Ethernet (MAC), containing processor with short command list (RISC CPU), and logic device 5 for distribution of data frames, including processing in real time scale and transmission to addresses frame destination ports of Ethernet data, received on said one-port communication module, transfer process is serial and is performed in save-and-send mode.

EFFECT: higher data distribution flexibility control.

2 cl, 7 dwg

The invention relates to systems for the transmission of data lines shared tire using a variety of interfaces

The invention relates to communication technology and can be used to speed up the process of exchange of information between smart devices

The invention relates to cellular telephone systems, specifically to a system for increasing the reliability of the cellular telephone system in environments with multipath transmission of signals, or in conditions in which a large number of mobile phone units simultaneously try to access the base station

FIELD: data transfer networks, in particular Ethernet-based.

SUBSTANCE: device is made in form of multiple individually programmed single-port communication modules for access to common distributor bus 10, while each single-port communication module has: programmed micro-controller 1, made as access control block for transmitting environment Ethernet (MAC), containing processor with short command list (RISC CPU), and logic device 5 for distribution of data frames, including processing in real time scale and transmission to addresses frame destination ports of Ethernet data, received on said one-port communication module, transfer process is serial and is performed in save-and-send mode.

EFFECT: higher data distribution flexibility control.

2 cl, 7 dwg

FIELD: physics; control.

SUBSTANCE: invention relates to control for actuating safety equipment. The invention discloses a control unit and a method of actuating safety equipment, as well as a sensor for outputting an emergency signal. The control unit for actuating safety equipment includes at least one interface which outputs a digital information signal, which includes multiple simultaneously turned on current sources for acting on the front of the digital information signal.

EFFECT: providing electromagnetic compatibility of control signals.

10 cl, 6 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to wireless communication systems, where access to a communication channel is restricted with periodic intervals. A system and a method involve an assessment of the first probability of collisions in a channel at the beginning of the intermittent channel interval, where the assessed probability of collision is increased at detection of a transmission error in the section of one or more preceding channel intervals; setting of the size of a competitive transmission window at the beginning of the current channel interval in compliance with the assessed first probability of collisions in the channel; assessment of the second probability of collisions for the next channel interval; and dynamic size variation of the competitive transmission window for the next channel interval in compliance with the assessed second probability of collisions in the channel.

EFFECT: reduction of data losses at transmission.

16 cl, 13 dwg

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a method of transmitting data telegrams (13a, 13b) from a transmitter (11a) to at least one receiver (11b), wherein the data telegrams (13a, 13b) to be transmitted are associated with a priority level which, during transmission of the corresponding data telegram (13a, 13b), specifies a priority to be considered. In the transmitter (11a) each priority level is associated with an intermediate storage area (17a, 17b); the data telegrams (13a, 13b) are transmitted over a physical communication medium (12) through different logical data connections (15a, 15b), wherein the number of logical data connections (15a, 15b) corresponds to the number of priority levels; data telegrams (13a) in the intermediate storage area (17a) associated with a lower priority level are transmitted through the logical data connection (15a) associated with said priority level until at least one data telegram (13b) is present in the intermediate storage area (17b) associated with a higher priority level, and the data telegram (13b) in the intermediate storage area (17b) associated with the higher priority level is transmitted through the logical data connection (15b) associated with the higher priority level.

EFFECT: transmitting data telegrams with different priority levels at a relatively low cost and therefore faster.

9 cl, 2 dwg

FIELD: physics, communications.

SUBSTANCE: invention relates to means of controlling access to a transmission medium for controlling access of a busbar user station, having first and second channels, to a second busbar channel shared by multiple user stations. The first channel is opened for exclusive access by a user station during at least one time interval for granting access, the beginning of which is defined by the user station through bitwise arbitration of the first channel, the end of which is defined once the user station frees it again after successful arbitration of the first channel. Access to the second channel shared by multiple user stations is controlled so as to open the second channel for access by the user station only during said time interval for granting access without separate arbitration to obtain access to the second channel.

EFFECT: high volume of transmitted data without deterioration of system performance in real time.

13 cl, 5 dwg

FIELD: communication.

SUBSTANCE: invention relates to network communication technologies. Disclosed is method of serial interface in bus system containing two bus subscribers, exchanging messages by bus, wherein sent messages have logic structure corresponding to ISO 11898-1 standard for CAN protocol, said logical structure includes frame starting bit, arbitration field, control field, data field, cyclic redundancy code (CRC), acknowledgement field and sequence end frame, control field includes data length code containing information on data field length, characterised by that in presence of first mark (EDL) control field in messages comprises, in contrast to ISO 11898-1 standard for CAN protocol, more than six bits, wherein first mark (EDL) is implemented by recessive bit in control field, and in presence of first mark after recessive bit of first mark (EDL) in all information messages should be at least one dominant bit (r0, r1).

EFFECT: technical result consists in improvement of data transmission speed.

21 cl, 5 dwg

FIELD: information technology.

SUBSTANCE: present invention relates to network communication technologies. In method access to bus for sending any message is provided to a bus subscriber which becomes sender of said message, according to an arbitration method of corresponding standard ISO 11898-1 on CAN protocol, messages have a logic structure corresponding to CAN protocol standard, that is, consist of a start-of-frame bit, arbitration field, control field, data field, cyclic redundancy check (CRC) field, acknowledge field, and end-of-frame field, function of data transmission is checked during transmission by comparing a sent signal sent to bus connection unit with received signal (CAN_RX) received by the bus connection unit, method is characterised in that a sent signal (CAN_TX_DEL) delayed by a delay time (T_DELAY) compared to sent signal (CAN_TX) is held in sender, and undelayed sent signal (CAN_TX) or delayed sent signal (CAN_TX_DEL) is used for checking correct function of data transmission depending on a switchover.

EFFECT: technical result is faster data transmission in network.

33 cl, 3 dwg

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